The MIDI jacks on Edirol PCR-x00 controllers, by default, act as a USB MIDI interface for your computer. If you wish to simply play an external sound module or other MIDI device, you must switch MIDI interface mode off:
1. Press EDIT. The display will read "EdIt".
2. Turn the VALUE dial to select "SyS" and press ENTER. The display will read "SyOO".
3. Turn the VALUE dial to select "Sy08" and press ENTER.
4. Turn the VALUE dial to turn MIDI interface mode "oFF" and press ENTER.
1. Press EDIT. The display will read "EdIt".
2. Turn the VALUE dial to select "SyS" and press ENTER. The display will read "SyOO".
3. Turn the VALUE dial to select "Sy08" and press ENTER.
4. Turn the VALUE dial to turn MIDI interface mode "oFF" and press ENTER.